Unfortunately I just sold off all three of my BGS 10 1952 Mantles; you should've asked me last week. Sorry.
The cards are actually for a student of mine. His grandfather got him started on the set. I filled in most of the gaps of his set from what I had lying around; just missed by those three cards.
As for those two cards which I am sure you are frustrated that you can't find, I'm sorry but I can't help you as of yet. I say as of yet because last week Kim had a "friend" sell her five 3,000 count boxes of cards all from 1986 through 1993. It's going to take me forever to go through them. As yes, because of my personality I will go through them and catalogue them. I know she thought she was doing me a favor but sheesh...friends don't sell friends 80s and 90s junk.
I'll let you know when I'm able to make it to Eastside. It's amazing how little time I have these days with work family demands.
LOL! I love going through miscellaneous boxes of cards if I can pick them up cheaply enough. There almost always are worthwhile cards to be found in those boxes. My theory is to buy those kinds of boxes cheaply enough where if I end up throwing all the cards away I won't be out more than a few dollars.
If it is easier for me just to mail them to you, go ahead and PM me your address and I'll put the cards in a PWE with a little protection around them. Heck, it is worth the stamp to help a kid out who actually collects cards these days. Talk about a rarity!